[vtkusers] Linear/Nearest Neighbour interpolation of vtkPointData

[Shashwath T.R.]

Why would you need a special method? Just snap your input point to the image
grid, and pick up the value there...

Regards,
Shash

On Tue, Jul 20, 2010 at 5:18 PM, Matt Clarkson
<clarkson at drc.ion.ucl.ac.uk>wrote:

> Hi there,
>
> I'm following this example:
> http://www.vtk.org/Wiki/VTK/Examples/Images/PickingAPixel
>
> However, at the point:
> this->PointData->InterpolatePoint( pd, 0, cell->PointIds, weights );
>
> how would I do NearestNeighbour interpolation? It currently appears to be linear?
>
> I have tried looking at the doxygen for vtkDataSetAttributes, and there is some mention of setting the interpolation but I don't understand what I'm meant to set on what. Please can any one help me?
>
> Many thanks in advance
>
> Matt
>
>
> ------------------------------------------------------
> Matt Clarkson Ph.D.
> Senior Research Associate
> m.clarkson at ucl.ac.uk
>
> Centre For Medical Image Computing
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